10b57cec5SDimitry Andric //===-- sanitizer_errno.h ---------------------------------------*- C++ -*-===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric // 90b57cec5SDimitry Andric // This file is shared between sanitizers run-time libraries. 100b57cec5SDimitry Andric // 110b57cec5SDimitry Andric // Defines errno to avoid including errno.h and its dependencies into sensitive 120b57cec5SDimitry Andric // files (e.g. interceptors are not supposed to include any system headers). 130b57cec5SDimitry Andric // It's ok to use errno.h directly when your file already depend on other system 140b57cec5SDimitry Andric // includes though. 150b57cec5SDimitry Andric // 160b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 170b57cec5SDimitry Andric 180b57cec5SDimitry Andric #ifndef SANITIZER_ERRNO_H 190b57cec5SDimitry Andric #define SANITIZER_ERRNO_H 200b57cec5SDimitry Andric 210b57cec5SDimitry Andric #include "sanitizer_errno_codes.h" 220b57cec5SDimitry Andric #include "sanitizer_platform.h" 230b57cec5SDimitry Andric 24*81ad6265SDimitry Andric #if SANITIZER_FREEBSD || SANITIZER_APPLE 250b57cec5SDimitry Andric # define __errno_location __error 26fe6060f1SDimitry Andric #elif SANITIZER_ANDROID || SANITIZER_NETBSD 270b57cec5SDimitry Andric # define __errno_location __errno 280b57cec5SDimitry Andric #elif SANITIZER_SOLARIS 290b57cec5SDimitry Andric # define __errno_location ___errno 300b57cec5SDimitry Andric #elif SANITIZER_WINDOWS 310b57cec5SDimitry Andric # define __errno_location _errno 320b57cec5SDimitry Andric #endif 330b57cec5SDimitry Andric 340b57cec5SDimitry Andric extern "C" int *__errno_location(); 350b57cec5SDimitry Andric 360b57cec5SDimitry Andric #define errno (*__errno_location()) 370b57cec5SDimitry Andric 380b57cec5SDimitry Andric #endif // SANITIZER_ERRNO_H 39